hg: jdk9/sandbox/langtools: 8175277: javadoc AssertionError when specified with release 8

[chris.hegarty at oracle.com]

Changeset: bef1cba2d0d9
Author:    ksrini
Date:      2017-03-27 17:53 -0700
URL:       http://hg.openjdk.java.net/jdk9/sandbox/langtools/rev/bef1cba2d0d9

8175277: javadoc AssertionError when specified with release 8
Reviewed-by: jjg, jlahoda

! src/jdk.compiler/share/classes/com/sun/tools/javac/main/Arguments.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/tool/Start.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/tool/resources/javadoc.properties
! test/jdk/javadoc/tool/modules/ReleaseOptions.java